My laptop very slow run

But after bios upgrade you had only 8gb of ram…

But after the bios upgrade you have 8gb of ram???

Your firewall is blocking communication between you and Apple's servers. There has been a network configuration error or it has been corrupted in some way.

@tedlindstroem - I couldn’t ID the part clearly from your image. I had to go by your description.

I would use the correct tape to replace the tape. Using regular double-sided tape will remove the EMI pathway. You might be able to use a very thin coat of acrylic spray adhesive. Just spraying onto the cleaned off surface (leaving the tape piece on). Just mask off the area so you don’t get the other parts sticky. Thinness counts here!

Battery charger machine